Easy Tuna Noodle Un-Casserole


This simple, dairy-free Tuna Noodle dish is made on the stove top rather than baked. But you can top it with breadcrumbs and bake it casserole-style, if preferred. And don’t be afraid to add some more flavors, like onion, garlic, or vegetables that you have on hand. This is a basic versatile recipe that is ready for your customization!

Easy Dairy-Free Tuna Noodle Un-Casserole Recipe

Special Diet Notes: Tuna Noodle Un-Casserole

By ingredients, this recipe is dairy-free / non-dairy, egg-free, nut-free, peanut-free, and optionally gluten-free.

4.4 from 5 reviews
Dairy-Free Tuna Noodle UnCasserole
Cook time
Total time
This quick and easy recipe goes nicely with steamed carrot slices.
Serves: 5 servings
  • 2 tablespoons non-hydrogenated dairy-free margarine (such as Earth Balance or select varieties of Smart Balance)
  • 2 tablespoons all-purpose flour (plain or gluten-free)
  • 2 cups chicken broth
  • 1 (170g) can tuna (flaked is easiest)
  • 1-1/2 cups frozen green peas
  • ½ teaspoon fresh ground black pepper
  • 6 cups cooked pasta (regular, whole wheat, or gluten-free), drained but not rinsed
  1. Melt the dairy-free margarine in a skillet or pot over medium heat.
  2. Add the flour, whisking until no lumps remain.
  3. Add ¼ to ½ cup of the chicken broth and whisk until smooth.
  4. Slowly whisk in the remaining chicken broth.
  5. Add the flaked tuna, and bring to a boil while continuing to whisk.
  6. Once boiling, add the frozen peas, reduce the heat to low, and simmer until the sauce reaches your desired thickness (just takes a few minutes).
  7. Whisk in the black pepper and stir in the cooked noodles until they are well-coated in the sauce.

About Author

Alisa is the founder of GoDairyFree.org, Food Editor for Allergic Living magazine, and author of the best-selling dairy-free book, Go Dairy Free: The Guide and Cookbook for Milk Allergies, Lactose Intolerance, and Casein-Free Living, and the new cookbook, Eat Dairy Free: Your Essential Cookbook for Everyday Meals, Snacks, and Sweets. Alisa is also a professional recipe creator and product ambassador for the natural food industry.


  1. Thanks for sharing this recipe. Was looking for a gluten free tuna casserole recipe and am glad I found this! Really enjoyed it!

  2. S J
    I just tried your recipe! I added & subtracted ingredients; first, I sautéed org white onion/chopped fresh garlic in org olive oil spray + Himalayan Pink Salt Crystals/Coarse Lemon Pepper and set it aside. I used Earth Balance + 100% White Whole Wheat Flour and a 12oz box of rainbow Rotini. I added several large chopped crimini mushrooms rather than peas /carrots. It was Delicious and I ate way too much!
    Thanks for the yummy Dairy Free Easy Tuna Noodle Un-Casserole versatile Recipe.

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  4. Will this work with another butter like I can’t Believe it’s not Butter? Very, Very new to this cooking thing so sorry if it’s a silly question.

  5. Molly Fechter-Leggett on

    I added 1/2 tsp garlic powder and 1 tbsp go veggie vegan parm to the sauce and it was perfect! Putting it in the oven with homemade crouton crust <3. Thanks for this!

  6. Thank you for your recipe! I am the only one lactose intolerant in my family, but as the mom, I still need to make meals we can all eat and enjoy. This fits the bill perfectly. Didn’t have peas, so I added diced carrots to the cooking pasta. Turned out fabulous!! Thanks for posting dairy free recipes!!

  7. Thank you so much for sharing this! Very excited about this recipe! I tried it and loved it. Unfortunately I had no peas on hand but I had frozen bell pepper strips, next time I’m going to make sure I have peas since that’s the best part 🙂 thanks again!

  8. Tuna casserole has always been one of my favorite dishes I have a husband and now a daughter who are both allergic to milk. I can’t wait to make this! Thank you for sharing! I’m going to cut up some bread cubes, place on top, and pop it in the oven for a bit. Can’t wait to try it!

  9. Mary Ramirez on

    I sautéed some sliced onions in Earth Balance then added more melted Earth Balance and covered the onions with Panko and sea salt. Cooked until toasty brown then covered the casserole with it and baked at 350F until bubbly. My husband liked it and he doesn’t like anything!

  10. Hi! I don’t have any margarine at home. Would it be possible to substitute coconut oil for the margarine? Or would it be too strong of a flavor. I’m new to the dairy free. And new to using coconut oil, but I’ve been substituting here and there.

  11. Debra’s take on this fabulous recipe – Adjustments were based entirely on availability of ingredients: a bag of mixed corn, carrots, and asparagus (rather than a bag of frozen peas.) I also added a box of frozen pearl onions that had been in the freezer for some time. Instead of chicken broth, I used unsalted vegetable broth. Since the broth was unsalted I added a heavy amount of ground sea salt and ground black pepper.
    End result was FABULOUS!
    It would never have come to be, or had been so healthy and delicious, without the fabulous original recipe.
    Thank you, Alisa Fleming!

  12. It is forbidden, by Jewish law, to eat any meat and fish together. I am sure that you are not aware of this. However, you can substitute using a parve imitation chicken broth flavored liquid. Please, adjust the recipe for those who are not aware that they are doing something not right. Thank You. Mrs. Siegel

  13. Is the canned tuna drained? Have you – or other readers – added the canned tuna water, and if so, does the chicken broth get reduced for a total of 2 cups liquid/broth?

    • Hi Lisa, sorry for the delay, yes, the tuna is drained. You could certainly try using the tuna juice – I would just pour it out into a measuring cup first, so you know how much to reduce the broth by.

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  15. Tuna casserole was my favorite comfort food as a child that my wonderful Grandma always made for me! Sadly I developed a milk allergy as an adult and thought I had to put it in my past. When I found your recipe, I immediately got together the ingredients and gave it a go, only adding some saute’d diced celery to it, since Grandma always used Cream of Celery soup in her version. WOW does this bring back memories!! It was fabulous!! Thank you so much for re-inventing my old favorite!!

  16. I found this in a search for a chicken and noodle casserole for my allergy kid. With some easy tweaks, it worked! I used a rotisserie chicken from the grocery (instead of tuna) and added some carrots because the picture had them, but they weren’t called for in the recipe. Also, my son is allergic to peas, so I put it some frozen asparagus cuts instead. I did find that it needed some salt, so I added it to suit my taste. It was a hit!

  17. For food allergy purposes, Smart Balance is NOT dairy free, it still contains up to 2% dairy product and would cause anaphylaxis in some. Earth Balance is vegan.

    • Good news Erica! Several versions of Smart Balance are dairy-free, including: Light Original, Organic Whipped, Omega-3 Light, Light w/ EVOO, Light w/ Flax Oil, Heart Right Light. Smart Balance & Earth Balance are actually owned by the same company, as is Best Life (another new dairy-free margarine. You are correct though in that not all varieties of Smart Balance are dairy-free. I’ll modify the recipe to clarify.

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